I've had several issues with my computer shutting down while Lightroom was open. The colours would spin and then the screen would split before shutting itself down.
It has been to the repairers twice in the last 2 weeks- thinking it was a graphics card issue. So they replaced it with no problem.
Now I'm thinking it could be Lightroom itself as the problem occurs every time I use the program.
Have you ever heard of this being an issue?
If so, please provide a solution.
This is almost definitely a hardware malfunction. A possibility is that a fan has failed and your computer is overheating.